Mu-Chen HuangSHEN-IUAN LIU2018-09-102018-09-102009-0515497747http://scholars.lib.ntu.edu.tw/handle/123456789/352069https://www.scopus.com/inward/record.uri?eid=2-s2.0-67349206617&doi=10.1109%2fTCSII.2009.2019166&partnerID=40&md5=adf83ea78f1482fa60981468a9d91b90In this brief, a fully differential comparator-based switched-capacitor (CBSC) second-order delta-sigma (ΔΣ) modulator is presented. To ensure differential operation, the CBSC ΔΣ modulator utilizes a common-mode feedback circuit to balance the pull-up current and the pull-down current in the ramp generator. This modulator has been fabricated in a standard 0.18-μm CMOS process. The active area is 0.21 mm2, and the power consumption, excluding output buffers, is 0.42 mW from a 1.8-V supply. This modulator achieves 65.3-dB signal-to-noise-plus-distortion ratio and an input dynamic range of 71 dB when sampled at 2.56 MS/s (OSR = 64). © 2009 IEEE.journal article10.1109/TCSII.2009.20191662-s2.0-67349206617WOS:000266331400008